This year, the pro-celebrity dance competition celebrates its 20th anniversary. All together, 309 celebrities have taken to the floor with 22 emerging victorious, and along the way the show has served up countless magical memories. This one-off programme, presented by regular hosts Tess Daly and Claudia Winkleman, features behind-the-scenes footage and interviews with dancers, judges and contestants, delving into the evolution of the show, its cultural impact and the unforgettable moments that have made Strictly a beloved Saturday night institution.
